Excavator



No. 62|,938. Patented Mar. '28, |899.

A. F. NIMS.

EXCAVATOR.

\ (Application med ,una 15, 1897.)

(N0 "Miels sheets-sheet l,

we mams persas vnorourml, wAsmNGTnN, n4 c.

No. 62|,938- Patented Mar. 28, |899. A. F. NiMS.

EXCAVATR.

(Application led Jung 15, 1897.)

5 Sheets-Sheet 2.

(No Model.)

*mi Nonms Pains co. PhoTaLmmwAsmNs'roN. D. z:`

No. 62|,913s.' 'Patented Mar. 2s, 1899. A. F. mms.

EXcAvAToR.

(Applicatin led .Tune 15, 1897.) (No LLSdI.) 1 {Sheets-Sheet 3.

l l'n THE Na-.RIS PETERS nur. moourno., wAsvlNcToN, o. c.

Patented Mar. 23, |899.

A. F. mms.

EXCAVATOR. (Application med J' une 15, 1897.)

5 Sheets-Sheet 4.

(No Model.)

we Nonms Psins' cc, Pnomixrno.. wlsHmsToN. n. c4

Patented Mar. 28, |899.

A. F. NIMS). EXCAVATOB.

(Agplicption led June I5, 1897.)

5 SheetsvSheet 5.

.(No Model.)

J'ef

llaman TAT-ns nrnNr Fries.

' EXCAVATO R.

SPECIFICATION forming part of Letters Patent No. 621,938, dated March 28, 1899.

Application tiled June 15, 1897. Serial No. 640,861. (No model.)

To CZZ whom t may concern.'

Be it known that I, ALVIN F. NIMs, of Ihiladelpliia, in the county of Jefferson, State of New York, have invented certain new and useful Improvements in Excavators, of which the following is a complete speciiication, ref

erence being had to the accompanying draw-- ings.

The object of my invention is to produce a comparatively simple, efiicient, and durable ditch-excavator, ditch-filler, and wagonloader provided with convenient and suitable means of adjustment for the performance of its several functions and of means for delivering the excavated products laterally at different distances and at different elevations, as may be required in grading or loading upon a wagon, for example.

In the accompanying drawings, Figure I is a side elevation of my lnachine, showing the parts in the initial position for digging. Fig. II is a longitudinal vertical section of the same,showi.ng the pIow depressed into a ditch.

Fig. III is a rear elevation of my machine, showing in full lines the parts in the position illustrated in Fig. I and'indicating in dotted lines the different positions of the terminal conveyer. Fig. IV is a top plan View, partially in section, of the machine as illustrated in Fig. I. Fig. Vis a detail plan view of the plow. Fig. VI is a section on the line VI VI of Fig. V. Fig. VII is a front elevation in the position shown in Fig. I with certain of the parts omitted. Fig. VIII is a rear elevation of the axle and portion of the frame in section, illustrating means for extending the axle. Fig. IX is a detail view of mechanism for supporting the terminalconveyer frame upon the derrick in order in the main to relieve the main pulley-shaft of the Weight of the former. Fig. X is a top plan view showing a modified form of plow. Fig. XI is a longitudinal section of plow on the line XI XI of Fig. X. Fig. XII is a view similar to Fig. XI, showing a modified form of auxiliary conveyer.

Referring to the figures on the drawings, 1 indicates the side pieces of a suitable oblong frame, united as by cross-pieces 2 and by diagonal braces 3. The frame, composed of the parts above enumerated, may be made of any suitable shape and dimensions and of any preferred material-for example, wood, iron, or steel. The frame at its forward end is supported as upon a bolster 4, carried upon an extensible front axle 5, which is provided upon its opposite extremities with wheels 6. The rear end of the frame is supported upon an extensible preferably inversely-U -shaped rear axle 7, as upon supporting-pieces 8. An ordinary or suitable block-and-strap connection 9 may be employed for holding the frame to the axle. (See Fig. VIII.) In the figure last referred to also is illustrated means for extending the length of the axles. As illustrated, it consists of an adjustable clamp 10, which encircles the overlapping terminals 1l and 12 of the axle, which may be adjusted to permit the elongation of the axles,as required. As illustrated, the underlying terminals 12 of the axles carry, respectively, the wheels by which the axle is supported.

The frame, with its axles and wheels, is designed to illustrate a suitable form of running-gear for my excavator and is susceptible of such changes as experience or preference may from time to time suggest. For the wheels 6 and 13 it may be desirable at times to substitute other meansof support-as, for example, sled-runners for working in moist clay earth. y

Upon the rear axle, as in pivotally-mounted supporting-boxes 15, I provide main der- ,rick-uprights 16,which are united, as by crosspieces 17, to form a swinging frame. Pivoted to the upper end of the supports 16, respectively, as indicated at 1S, I provide pendant-supports 19, to each of which, as indicated at 20, is pivoted a cross-piece 21. The two cross-pieces extend equidistantly substantially on both sides of their pivotal connection 2O and at.their rearward extremities are united by cross frame-pieces 22. To the respective cross-pieces 21 are pivotally united, as indicated at 23, pendant-supports 2.4,which are pivotally united, as indicated at 25, to a somewhat box-shaped terminal-conveyer frame, hereinafter specified in detail, and Whose other side is pivotally supported by or concentrically with a main-conveyer pulleyshaft 26, that is revolubly carried in suitable bearings in the opposite pendant-supports 19.

The uprights 16, carrying, as specified, the pendant-supports 19 and 24, with the cross- IOO pieces 2l, constitute a derrick for the support of the terminal-conveyer frame above alluded to. The derrick, as stated, is adapted to sustain the conveyer-frame at different elevations, as will appear upon comparison of Figs. I'and ll, for example.

As will hereinafter more fully appear, it is essential that the terminal-conveyer frame shall at all times maintain a substantially horizontal position. For that reason I provide, in connection with the mechanism constituting the derrick previously described, mechanism for compelling the terminal-conveyer frame to assume at all times the required position. In order to accomplish that result, the cross-pieces 2l, as specified, extend forwardly beyond their pivotal connections 20. Parallel to said extensions I provide an arm 2S, that is pivotally mounted upon the shaft 13, to which also are pivoted the pendantsupports 19, as above specified. Movement of the respective arms 2S parallel with the crosspieces 2l is compelled by a link 29, pivoted at its opposite ends, as indicated at 30 and 3l, respectively, to an arm 2S and cross-piece 2l, the link 29 being coextensive between its pivotal connections with that portion of the support 19 between the pivotal connections 1S and 20.

The upright 16 carries in suitable supports a shaft 32, to which is adjustably secured (see Fig. Ill) a sprocket-gear To the adjacent wheel 13 is secured a sprocket-gear 34.

A sprocket-band 35, meshing with the gearsA 33 and 34, respectively, is adapted to rotate the shaft 32. The gear 33 is adjustable on the shaft 32 in order to accommodate the extensibility of the rear axle, which carries the wheel 13, above specified.

Between the uprights 16 the shaft 32 carries a fixed gear 36, which intermeshes with a loose gear 37, mounted upon the fixed shaft 13, above specified. The gear 37 being secured against movement endwise of the shaft 1S is provided upon one side with a sprocketgear 3S, which, deriving motion from the previously-specified train of gears which connects it with the wheel 13,- communicates, through a sprocket chain 39, power to a sprocket-gear 40, secured to one end of the shaft 26. On the opposite end of the shaft 26 is secured a sprocket-gear 42, (see Fig. IIL) which, through a sprocket-chain 43, is geared to a sprocket-gear 44, secured to a shaft 45, (see Fig. lV,) carried in snit-able bearin gs 46 in the side pieces 47 of the terminal-eonveyer frame. The terminal-conveyer frame is composed of the side pieces 47, end pieces 43, and bottom 49, rigidly united to form a box-shaped frame, as above specified. v

The shaft 45 is provided between its bearings 47 with miter-gears 50 and 5l, which are secured to it and adapted alternately to intermesh with a third gear 52, that is fixed to a shaft 53, carried in suitable bearings 54 on one of the end pieces 43 and on a cross-piece 55 of the terminal-conveyer frame. The shaft 45 is movable within fixed liinits controlled by the respective locations upon it of the gears 50 and 5l, so that one or the other of the gears 50 5l may be brought into mesh with the gear 52. Only a slightmovement of the shaft 45 is required for the purpose specified, and that may be accomplished as by a lever 56, pivoted, asindicated at 57, to the terminalconveyer frame and provided with a bifurcated end 5S, which engages a collar 59, secured to the shaft 45.

The lever 56 is shown as projecting rearwardly from the terminal-conveyor frame; but that particular location of the lever is not essential. By the employment of the lever motion may be communicated to the shaft 53 in opposite directions as required.

To the rearward extremity of the shaft 53 is secured a sprocket-gear 61,With which meshes a sprocket-chain 62, which, passing around idlers 63, mounted upon studs 64 upon the terminal-conveyer frame, is operatively guided thereby to sprocket-gears 65 and 67, secured, respectively, upon shafts 67 and 68,' that are mounted in suitable bearings in termin al-eonveyer-frame side pieces 69.

Upon the respective shafts 67 and 63 are secured drums or pulleys 70, which support an endless belt or conveyer 7l, that is driven by its pulley in either direction, as required.

The frame, composed of the side pieces 69, united by the shafts 67 and 68 at its opposite ends, is an oscillatory frame, being supported upon four swinging arms 73, being loosely connected with the side pieces 69 to the crosspieces 2l, respectively, of the derrick above specified.

The terminal conveyer, composed of the side pieces 69, the pulleys 70, their respective shafts, and belt and pulley driving mechanism, being oscillatory is adapted to be swung into various positions-as suggested, for example, in Fig. Ill-in any of which positions it is completely operative as a conveyer. The swinging of the con veyer produces the elevation of one end and depression of the other, as well as a shifting of its position laterally. By this means material deposited upon the moving belt '7l may be discharged ata greater or less distance to one side or the other of the pulleys 63, for instance, or at a greateror less elevation above the position shown in full lines in Fig. III.

For fixing the position of the conveyer l provide conveyer-shifting mechanism, which, as illustrated, consists of a rod 75, mounted near its opposite ends in bearings 76 and 77, respectively located upon the main frame of the machine and the terminal-conveyer frame, respectively. At its latter end the rod carries a spool 7 8, around which is wrapped a rope or other flexible connection 79, which is secured at its opposite ends, as indicated at S0, to the forward frame-piece 69. The rotation of the rod 75 suffices to 'swing the frame-pieces 69 and the conveyer, of which they constitute a part, to one side or the other.

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621,938 v A e,

Suitable mechanism for fixing the adjustment of the rod 75 may be employed-for example, the pawl-and-ratchet mechanism clearly indicated at 81 in Fig. IV of the drawings.

The shaft 26 carries a main-conveyer pulley 82, (See Fig. II,) whose periphery is in close juxtaposition to the upper surface of the belt 71-a position which it maintains throughout the various movements of the terininal-conveyer frame in consequence of the connection of the shaft with the pendantsupports 19. rlhe pulley 82, being secured to the shaft 26 and deriving rotatory movement from the engagement of the teeth of the pulley-10 with the links of the chain 39, imparts movement to a main-.conveyer endless belt 83, which is stretched taut between the side frame-pieces 84 of the main-conveyer frame, as by means of a terminal guide-pulley 85, carried between the lower extremities of the side pieces 84, the upper extremities of the side pieces 84 being extended upon one side, as indicated at 86, and journaled upon the shaft 26. A guide-pulley 87, carried between the heads 86 of the side pieces 84, holds the belt 83 snugly against the pulley 82, so asto cause the belt to engage with the greater portion of the periphery of the pulley. The main conve-yer is designed to swing vertically upon its pivotal support 20. In order to secure a proper relation between such vertical movement and the vertical movement of the terminal conveyer, I employ connecting-arms 88, pivoted, like the link 29, as indicated at 30, to the arms 28, respectively, at one end and at the other end, as indicated at 89, to the supporting-pieces 8, respectively.

From the foregoing description it will be perceived that the shaft 26 is, infact, the main-conveyer driving-shaft. In order, therefore, that it may not be loaded with the weight of the terminal-conveyer frame, I provide, as indicated in Fig. IX, for its support a sleeve 90. rigid pivotal support for the terminal-conveyer frame upon the pendant-supports 19, thereby leaving the shaft 2G free to move independently of the weight of the terminalconveyer frame.

The free ends of the side pieces 84 carry between them a plow 91, (compare Figs. V, VLand VII-,l which is provided with an oblique chute 92, defined by a frame side piece 92, and an upwardly-curved moldboard 92" for guiding the earth upturned by the plow to the belt 83. The plow is designed to preserve accurate vertical alin ement in its upward-anddownward movement and is for that reason connected, as by a brace-plate 93, with a draftbeam 94, movable in' fixed alinement through apertures 95 and 96 in the bolster 4 and the forward cross-piece 2 of the main frame.

For adjusting the degree of elevation of the draft-beam 94 I provide suitable meansfor example, a rod 97, movable in bearings in uprights 98 upon the main frame. The rod is provided at one end with a gear 99 and The sleeve at the same time affords ameshes with a rack 100 on one side of the draft-beam. On the opposite extremity the lrod is provided with a hand-wheel 101 for actuating it. (See Fig. Il.) For holding the rod in fixed adjustment I provide suitable mechanism-as, for example, ordinary pawland-ratchet mechanism 103. The pawl-andratchet connection previously described being designed, preferably, for fixing the adjustment of the draft-beam after it is secured, I prefer to employ additional mechanism for lifting the weight of the plow, which mechanism may consist, for example, of a drinn 104, secured to a shaft 105, parallel to the rod.

97, between the uprights 98 and winding upon it a chain 106, secured to it at one end and at its other end t0 the plow. (See Fig. I.)

Upon the shaft 105 is splined a notched collar or clutch member 107, adapted by a lever 108 to be actuated to and from a clutch member 109, made integral with aloose gear 110 upon the shaft `105, which intermeshes with a gear 111, secured to the rod 97. The

v"lever 108 is pivotally supported upon the main frame, as upon an arm or stud 112.

By the mechanism 4specified the plow may be lifted by aid of the draft-beam 94 solely or, upon uniting the clutch members, through the aid of the beam 94 and chain 106 combined.

From that portion of the foregoing specilication immediately preceding it will appear that the main frame of the machine, in combination with the frame side pieces 84 and the draft-beam 94, constitutes a triangular frame, the plow-frame being carried at the lower angle of the frame and forward end of the triangle, the draft-beam 94 being adjustable as to length. The plow 91 being movable in accurate vertical alinement, its elevation tends to thrust the ends of the side ate the several elements composing the der- IOO IOS

IIO

rick. The derrick, however, is directly operative, as by means of a windlass 113, secured between uprights 114 on the main frame and operated by a hand-wheel 115. A flexible connection--as, for example, a chain or rope 11G- operatively unites the windlass with the swinging frame defined by the su pports 16 and their cross-pieces.

By way of explanation of the operation of my machine it will be sufficient to state that the machine, being drawn or propelled in any suitable manner, imparts through the rotation of the wheels 13 movement to the conveyer mechanism previously speciied, thereby causing the upper surface of the belt 83 to travel toward its pulley 82 and the belt 71 to travel in one direction or the other, as desired, the direction being determinable by the positions of the lever 50. At the same time the plow, being properly adjusted, supplies earth tothe belt 83, which is carried thereby machine or at a greater or less distance from IIS the ditch cut by the plow upon the margin of the ditch, or by swinging the terminal-conveyer frame the earth may be discharged therefrom at an elevation into a wagon-body,.4

for example. \Vith each repeated plowing operation in the same ditch the plow is suitably depressed and enabled to perform its work. Moreover, on account of the adjustability of the plow and the respective conveyers excavated earth can be by my machine taken up and redeposited into a ditch. This operation can be readily understood by reference to Fig. Ill, Jfor example. Assuming, with reference to that figure, that the vehicle-wheels are made to travel to one side of the course which they pursue in excavating and that the plow is put into operation, the plow will take up the earth deposited to one side of the ditch and in the manner previously described deliver it to the conveyer-belt S3, from which, as in the manner described, it will be delivered to the conveyer-belt '71. Now it the terminal conveyer be shifted to one ofthe oblique positions shown in dotted lilies in Fig. Ill and the conveyer-belt 71 be made to travel downwardly the earth supplied from the belt S3 to the belt 71 will be discharged between the wheels of the vehicle and, if the adjustment be perfected, into the ditch from which it had been previously taken.

In Figs. X and XI of the drawings l illustrate a modified form of plow, the modification consisting in providing upon the plow an auxiliary conveyer, which assists the plow in its progress by positively conveying the material turned up by the plow toward the main conveyer. The mechanism referred to, as shown in Figs. X and XI, consists of a guidepulley 115, carried in suitable bearings in the plow-frame, and a drive-pulley 11G, carried in operative proximity to the belt S3 and in operative relations to the guide-pulley S5 of the main-conveyer belt. The guide-pulley and the drive-pulley are operatively united, as by a sprocket-chain 117,connecting, respectively, the opposite ends of the respective pulleys by means of sprocket-wheels 11S and 119, secured near the opposite extremities of the pulley-shafts, respectively. A suitable auxiliary endless conveyer-belt 120 surrounds the pulleys 115 and 11G, the auxiliary belt being preferably made of double-beaded steel.

For operatively uniting the pulley 116 to the pulley S5 the latter may be provided with a sprocket-wheel 121, which, as by a belt 122, is operatively connected with a sprocketwheel 23 on a shaft 124. The shaft 124; is opera-tively connected with the pulley-shaft 125 of the pulley 116, as bya universal joint 126.

By the arrangement above described the rotation of the pulley S5 will impart movement to the belt 120, located in an opening 27 in the chute 02, and. serve to relieve pressure upon the plow by keeping the earth in positive motion toward the moving conveyer-belt S3.

For operating in heavy earth the form of auxiliary conveyer shown in Fig. XII may be substituted for that shown in Figs. X and Xl.

In Fig. XII an endless belt 128, passing over pulleys 129 and 130, respectively, and operatively connected with the pulley 35, is illustrated. The pulleys 129 and 130, however, are located above the chute 92, and the belt 125` is provided with Scrapers 131, which work against the face of the chute and in their upward travel keep the earth moving along the chute toward the belt 83.

Under some conditions I prefer to employ supporting-wheels 132, carried in vertical adj ustable boxes 133 in the plow-frame. (See Figs. X and XI.) The object of the wheels .32 is to take the weight from the rear end of the plow and to keep the plow pointed in the proper operative direction.

lVhat I claim is- 1. The combination with a frame, as of a vehicle, and a vertically-ad j ustable vertical draft-beam incapable of lateral movement, of a plow rigidly secured to the lower extremity of said draft-beam, and a main conveyer extending between said plow and a moving part of the frame and operatively connected with the former whereby the adjustment of the draft-beam effects the angular adjustment of the main conveyer without permitting other than vertical movement of the plow, substantially as specified.

2. The combination with a frame, as of a vehicle, of a vertically-adj ustable draf t-beam, a plow connected to the lower extremity thereof, and a derrick comprising swinging standards or uprights and swinging pendants operatively connected thereto, and a main conveyer operativelyconnected at its opposite ends to the plow and to the pendants of the derrick, substantially as specified.

3. The combination with a frame, as of a vehicle, of a vertically-adj ustable draft-beam, a plow connected to the lower extremity of said beam, a derrick located at the rear extremity of the frame and comprising swinging uprights and swinging pendants operatively connected thereto, a main -eonveyer pulley journaled to the lower ends of the derrick-pendants, a main conveyer passing around the pulley and around an idler located adjacent to the rear end of the plow, a terminal-conveyer frame carried by the derrickpendants, a terminal conveyer within the frame, and means for effecting the vertical adjustment of the draft-beam whereby the angular adjustment of the main conveyeris effected by the adjustment of the plow and the vertical and horizontal adjustment of the terminal conveyer to cause it to maintain proper relation with the rear end of the main conveyer is simultaneously effected, substantially as specified.

4. The combination with a frame, as of a vel1icle,of a vertically-adj ustable draft-beam, a plow connected to the lower end thereof, a

derrick comprising swinging uprights andV swinging pendants operatively connected TOO' IIO

thereto,amainconveyer pulley journaled adthe vertical adjustment of the draft-beam,-

and independent means for swinging the derrick, substantially as specified.

5. The combination with a frame, as of a vehicle, of a vertically-adjustable plow located adjacent to the front end of the frame, a derrick at the rear end of the frame and comprising swinging uprights and swinging pendants,a main con veyer extending between the plow and the lower ends of the pendants, a terminal-conveyer frame carried by said pendants, and a terminal conveyer within the conveyer-frame and supported by other pendants whereby said terminal conveyer is capable of lateral adjustment with respect to the conveyer-frame, means for swinging the derrick to accomplish the proper vertical adjustment of the rear end of the conveyer and of the terminal-conveyer frame, and means for effecting the adjustment of the terminal conveyer within its frame, substantially as specified.

G. The combination with a frame, as of a vehicle, of a vertically-adj ustable plow, a derrick comprising swinging uprights and swinging pendants operatively connected thereto, a main conveyer extending between the plow and the swinging pendants of the derrick, a terminal-conveyer frame supported by the pendants, an oscillatoryv terminal conveyer within the conveyer-frame and having an adjustment independent thereof, means for vertically adjusting the plow to effect a corresponding cooperative adjustment of the main conveyer and terminal-conveyer frame, and independent mechanism for swinging the derrick to accomplish the adjustment of the main conveyer and terminal conveyer, and means for accomplishing the adjustment of the terminal conveyer within the terminal-conveyer frame, substantially as specified.

7. The combination with a frame, as of al vehicle, of an adjustable plow, a derrick comprising swinging uprights and swinging pendants connected operatively thereto, a main conveyer extending between the plow and the lower ends of the pendants of the derrick, a terminal-conveyer frame carried by the pendants, a terminal conveyer Within the conveyer-frame and having an adjustment independent thereof, actuating mechanism. common to the main and terminal conveyers,'plow adjusting mechanism, derrick adjusting mechanism and terminal conveyer adj usting mechanism, substantially as specified.

S. The combination with a frame, as of a vehicle, of a plow, a main conveyer extending'rearwardly from the plow, and a horizontally and vertically movable conveyer-frame movable in unison with the rear end of the main conveyer, a terminal conveyer within the terminal-conveyer frame adjustable therewith and having an adjustment independent thereof, mechanism carried by the terminalconveyer frame for actuating the terminal conveyer, and meansA for reversing the operation of said actuating mechanism, substantially as specified.

9. The combination with a frame, as of a vehicle,of a vertically-ad j ustable draft-beam, a plow secured to the lower end of said beam, a supporting part carried by the frame capable of vertical and longitudinal movement, as for instance, a derrick,a termin al conveyer carried by said part, and a main conveyer operatively connected with the plow and to said vertical and longitudinal movable supporting part whereby when the plow is elevated by the adjustment ofl the draft-beam, the supporting part referred to will permit the rear end of the main conveyer to move rearwardly and downwardly and will cause the terminal conveyer to move in unison with the rear end of the main conveyer, substantially as specified.

10. The combination with a frame, as of a vehicle, of a plow, a vertically-adjustable draft-beam operatively connected therewith, draft-beam-actuating mechanism, auxiliary plow-elevating mechanism, and means for connecting or disconnecting the auxiliary plow-elevating mechanism to or from the draft beam -adjusting mechanism, substantially as specified.

11. The combination with a frame, draftbeam secured within rigid bearings upon the frame, and a plow, of a brace-plate rigidly uniting the draft-beam and the plow, and a conveyer operatively connecting the plow and the frame, substantially as set forth.

l?.x The combination with a frame, as of a vehicle, plow, and main conveyer, of a swinging derrick-fraine upon the vehicle-frame, a pair of pendant-supports pivoted to the opposite sides of the derrick-frame, a main-conveyer pulley pivoted to said pendant-supports, cross-pieces pivoted to the pendantsupports, and extending upon opposite sides thereof, a terminal-conveyer frame, inovably secured to said pendant-supports, a second pair of pendant-supports pivoted to the crosspieces, and to the terminal-conveyer frame, respectively, parallel arms pivoted to the derrick-frame at one end, and extending parallel with the cross-pieces, links pivot-ally united to the parallel arms and to the cross-pieces, respectively, and compelling parallel movement between the cross-pieces and said arms, and connecting-arms pivoted at one end to the parallel arms, respectively, and at the other end to the vehicle-frame,l whereby the swinging movement of the derrick-frame produces vertical adjustment of the terminal-conveyer frame and correlative movement of the main-conveyer pulley, substantially as and for the purpose specified.

13. The combination with a frame, as of a IOC) IIO

vehicle, of a plow, auxiliary and main conveyers, a terminal conveyer located beyond and below the rear end of the main conveyer, and mechanism operatively connecting the main and terminal conveyers in a manner to permit angular adjustment of the main conveyer and to compel the terminal conveyer to assume at all times a horizontal lateral position in juxtaposition to the rear end of the main conveyer, substantially as specified.

ll. The combination with a frame, as of a vehicle, of a plow, a derriek, a terminal-conveyer frame, and a main-con veyer pulley carrietl on the derrick, a main conveyer extending between the main-conveyer pulley and the plow, mechanism operatively connected with the main con veyer and the terminal-conveyer frame adapted to compel the terminal-conveycr frame to retain a constantly horizontal position in its vertical adjustments, an independently-adj ustable terminal conveyer withiu the terminal-couveyer frame, means for adjusting thederrick, and means for adjusting the terminal conveyor within its frame, and

actuating mechanism for the several conveyers, substantially as specified.

l5. The combination with a frame, aS 0l' a vehicle, of a vertically and horizontally adjustable conveyor-frame, an oscillatory terminal conveyer Within the tcrminal-convcjf'er frame, mechanism for adjusting the terminalconveyer frame, and mechanism for aecomplishing the adjustment of the terminal conveyer, substantially as specified.

lo'. The combination with a frame, as of a Vehicle, of a vertically and horizontally movable supporting part, a terminal-convcyer frame suspended from said supporting part, and independently-adj ustable eonveyer within the terminal-conveyor frame, and mechanism for operating,r the terminal conveyer in either direction, substantially as speciiicd.

In testimony of all which l have hereunto subscribed my name.

ALVIN F. NIMS.

\\/'it1iesses:

LoUIs Gnaro'rfrn, D. C. ALDRICH. 

